class_docstr: Test class for AthenaClient
docstr: Athena - Execute and Wait
docstr_tok: ["Athena","-","Execute","and","Wait"]
code: def test_execute_and_wait(self):
      """Athena - Execute and Wait"""
      self.client._client.results = [
          {"Data": [{"VarCharValue": "result"}]},
      ]
      result = self.client._execute_and_wait("SQL query")
      assert_true(result in self.client._client.query_executions)
  
imports: from datetime import datetime
  import os
  from mock import Mock, patch
  from nose.tools import assert_equal, assert_false, assert_count_equal, assert_raises, assert_true, raises
  from streamalert.shared.athena import AthenaClient, AthenaQueryExecutionError
  from streamalert.shared.config import load_config
  from tests.unit.helpers.aws_mocks import MockAthenaClient
label_desc: Use image node_id 16 for calling the TestAthenaClient obj's underlying member method code with example usage: obj.test_execute_and_wait() without return types